package com.atguigu.flink.chapter05.sink;

import com.atguigu.flink.bean.WaterSensor;
import org.apache.flink.configuration.Configuration;
import org.apache.flink.streaming.api.datastream.DataStreamSource;
import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
import org.apache.flink.streaming.connectors.kafka.FlinkKafkaProducer;
import org.apache.flink.streaming.connectors.kafka.KafkaSerializationSchema;
import org.apache.kafka.clients.producer.ProducerRecord;

import javax.annotation.Nullable;
import java.nio.charset.StandardCharsets;
import java.util.Properties;

public class Flink01_Sink_Kafka_2 {
    public static void main(String[] args) throws Exception {
        Configuration conf = new Configuration();
        conf.setInteger("rest.port", 20000);
        StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment(conf);
        env.setParallelism(2);

        DataStreamSource<WaterSensor> s1 = env.fromElements(
                new WaterSensor("sensor_1", 1L, 10),
                new WaterSensor("sensor_1", 2L, 20),
                new WaterSensor("sensor_1", 5L, 20),
                new WaterSensor("sensor_2", 3L, 30),
                new WaterSensor("sensor_1", 4L, 40)
        );

        Properties props = new Properties();
        props.setProperty("bootstrap.servers", "hadoop162:9092");


        s1

                .addSink(
                        new FlinkKafkaProducer<WaterSensor>(
                                    "default",
                                new KafkaSerializationSchema<WaterSensor>() {
                                @Override
                                public ProducerRecord<byte[], byte[]> serialize(WaterSensor ws,
                                                                            @Nullable Long timestamp) {

                                    return new ProducerRecord<>("s1", ws.toString().getBytes(StandardCharsets.UTF_8));
                                }
                            },
                            props,
                            FlinkKafkaProducer.Semantic.NONE
                        )
                );

            env.execute();

    }
}
